HHTNet: Hilbert-Huang transform-guided correlation network for salient object detection

doi:10.1007/s11760-025-04760-x

HHTNet: Hilbert-Huang transform-guided correlation network for salient object detection

2025-09-11

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DOI：10.1007/s11760-025-04760-x

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Salient object detection (SOD) is vital for computer vision and involves the key challenge of capturing dense pixel-level information while accurately identifying target details. However, existing methods still struggle with missed detection and the false segmentation of salient objects in complex scenarios, particularly under conditions where resources are limited. To overcome these limitations, this paper introduces a novel Hilbert-Huang transform-guided correlation network (HHTNet) for saliency inference. This architecture achieves significant advances through two key modules. The cross-correlation fusion module (CCFM) achieves accurate cross-sample feature matching and localization by establishing dense correlation maps, thereby enhancing saliency prediction. The Hilbert-Huang transform-guided local attention module (HHT-LAM) combines frequency domain analysis with a spatial channel attention mechanism to perform dual feature calibration. This improves feature discrimination while achieving collaborative enhancement and selective refinement of features. Extensive experiments on five datasets demonstrate that our approach achieves scores of 0.810 (0.044), 0.907 (0.041), 0.895 (0.033), 0.816 (0.073), and 0.751 (0.056) on the F beta\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$F_{\beta }$$\end{document} (MAE) metric respectively. Furthermore, the proposed approach requires only 3.18M parameters and 4.87G FLOPs, striking a balance between accuracy and efficiency and providing practical possibilities for edge deployment.

Keywords:

Salient object detection

Cross-correlation fusion module

Hilbert-Huang transform-guided local attention module

Optimize loss function

HHTNet: Hilbert-Huang transform-guided correlation network for salient object detection

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